diff options
Diffstat (limited to 'actionview/lib/action_view/helpers/asset_url_helper.rb')
| -rw-r--r-- | actionview/lib/action_view/helpers/asset_url_helper.rb | 143 |
1 files changed, 101 insertions, 42 deletions
diff --git a/actionview/lib/action_view/helpers/asset_url_helper.rb b/actionview/lib/action_view/helpers/asset_url_helper.rb index 717b326740..e0de2ff4d6 100644 --- a/actionview/lib/action_view/helpers/asset_url_helper.rb +++ b/actionview/lib/action_view/helpers/asset_url_helper.rb @@ -1,4 +1,5 @@ -require 'zlib' +require "zlib" +require "active_support/core_ext/regexp" module ActionView # = Action View Asset URL Helpers @@ -36,7 +37,7 @@ module ActionView # some asset downloads to wait for previous assets to finish before they can # begin. You can use the <tt>%d</tt> wildcard in the +asset_host+ to # distribute the requests over four hosts. For example, - # <tt>assets%d.example.com<tt> will spread the asset requests over + # <tt>assets%d.example.com</tt> will spread the asset requests over # "assets0.example.com", ..., "assets3.example.com". # # image_tag("rails.png") @@ -117,31 +118,86 @@ module ActionView module AssetUrlHelper URI_REGEXP = %r{^[-a-z]+://|^(?:cid|data):|^//}i - # Computes the path to asset in public directory. If :type - # options is set, a file extension will be appended and scoped - # to the corresponding public directory. + # This is the entry point for all assets. + # When using the asset pipeline (i.e. sprockets and sprockets-rails), the + # behavior is "enhanced". You can bypass the asset pipeline by passing in + # <tt>skip_pipeline: true</tt> to the options. # # All other asset *_path helpers delegate through this method. # - # asset_path "application.js" # => /assets/application.js - # asset_path "application", type: :javascript # => /assets/application.js - # asset_path "application", type: :stylesheet # => /assets/application.css - # asset_path "http://www.example.com/js/xmlhr.js" # => http://www.example.com/js/xmlhr.js + # === With the asset pipeline + # + # All options passed to +asset_path+ will be passed to +compute_asset_path+ + # which is implemented by sprockets-rails. + # + # asset_path("application.js") # => "/assets/application-60aa4fdc5cea14baf5400fba1abf4f2a46a5166bad4772b1effe341570f07de9.js" + # + # === Without the asset pipeline (<tt>skip_pipeline: true</tt>) + # + # Accepts a <tt>type</tt> option that can specify the asset's extension. No error + # checking is done to verify the source passed into +asset_path+ is valid + # and that the file exists on disk. + # + # asset_path("application.js", skip_pipeline: true) # => "application.js" + # asset_path("filedoesnotexist.png", skip_pipeline: true) # => "filedoesnotexist.png" + # asset_path("application", type: :javascript, skip_pipeline: true) # => "/javascripts/application.js" + # asset_path("application", type: :stylesheet, skip_pipeline: true) # => "/stylesheets/application.css" + # + # === Options applying to all assets + # + # Below lists scenarios that apply to +asset_path+ whether or not you're + # using the asset pipeline. + # + # - All fully qualified urls are returned immediately. This bypasses the + # asset pipeline and all other behavior described. + # + # asset_path("http://www.example.com/js/xmlhr.js") # => "http://www.example.com/js/xmlhr.js" + # + # - All assets that begin with a forward slash are assumed to be full + # urls and will not be expanded. This will bypass the asset pipeline. + # + # asset_path("/foo.png") # => "/foo.png" + # + # - All blank strings will be returned immediately. This bypasses the + # asset pipeline and all other behavior described. + # + # asset_path("") # => "" + # + # - If <tt>config.relative_url_root</tt> is specified, all assets will have that + # root prepended. + # + # Rails.application.config.relative_url_root = "bar" + # asset_path("foo.js", skip_pipeline: true) # => "bar/foo.js" + # + # - A different asset host can be specified via <tt>config.action_controller.asset_host</tt> + # this is commonly used in conjunction with a CDN. + # + # Rails.application.config.action_controller.asset_host = "assets.example.com" + # asset_path("foo.js", skip_pipeline: true) # => "http://assets.example.com/foo.js" + # + # - An extension name can be specified manually with <tt>extname</tt>. + # + # asset_path("foo", skip_pipeline: true, extname: ".js") # => "/foo.js" + # asset_path("foo.css", skip_pipeline: true, extname: ".js") # => "/foo.css.js" def asset_path(source, options = {}) raise ArgumentError, "nil is not a valid asset source" if source.nil? source = source.to_s - return "" unless source.present? - return source if source =~ URI_REGEXP + return "" if source.blank? + return source if URI_REGEXP.match?(source) - tail, source = source[/([\?#].+)$/], source.sub(/([\?#].+)$/, ''.freeze) + tail, source = source[/([\?#].+)$/], source.sub(/([\?#].+)$/, "".freeze) if extname = compute_asset_extname(source, options) source = "#{source}#{extname}" end if source[0] != ?/ - source = compute_asset_path(source, options) + if options[:skip_pipeline] + source = public_compute_asset_path(source, options) + else + source = compute_asset_path(source, options) + end end relative_url_root = defined?(config.relative_url_root) && config.relative_url_root @@ -168,13 +224,13 @@ module ActionView # asset_url "application.js", host: "http://cdn.example.com" # => http://cdn.example.com/assets/application.js # def asset_url(source, options = {}) - path_to_asset(source, options.merge(:protocol => :request)) + path_to_asset(source, options.merge(protocol: :request)) end alias_method :url_to_asset, :asset_url # aliased to avoid conflicts with an asset_url named route ASSET_EXTENSIONS = { - javascript: '.js', - stylesheet: '.css' + javascript: ".js", + stylesheet: ".css" } # Compute extname to append to asset path. Returns nil if @@ -187,12 +243,12 @@ module ActionView # Maps asset types to public directory. ASSET_PUBLIC_DIRECTORIES = { - audio: '/audios', - font: '/fonts', - image: '/images', - javascript: '/javascripts', - stylesheet: '/stylesheets', - video: '/videos' + audio: "/audios", + font: "/fonts", + image: "/images", + javascript: "/javascripts", + stylesheet: "/stylesheets", + video: "/videos" } # Computes asset path to public directory. Plugins and @@ -202,6 +258,7 @@ module ActionView dir = ASSET_PUBLIC_DIRECTORIES[options[:type]] || "" File.join(dir, source) end + alias :public_compute_asset_path :compute_asset_path # Pick an asset host for this source. Returns +nil+ if no host is set, # the host if no wildcard is set, the host interpolated with the @@ -213,19 +270,21 @@ module ActionView host = options[:host] host ||= config.asset_host if defined? config.asset_host - if host.respond_to?(:call) - arity = host.respond_to?(:arity) ? host.arity : host.method(:call).arity - args = [source] - args << request if request && (arity > 1 || arity < 0) - host = host.call(*args) - elsif host =~ /%d/ - host = host % (Zlib.crc32(source) % 4) + if host + if host.respond_to?(:call) + arity = host.respond_to?(:arity) ? host.arity : host.method(:call).arity + args = [source] + args << request if request && (arity > 1 || arity < 0) + host = host.call(*args) + elsif host.include?("%d") + host = host % (Zlib.crc32(source) % 4) + end end host ||= request.base_url if request && options[:protocol] == :request return unless host - if host =~ URI_REGEXP + if URI_REGEXP.match?(host) host else protocol = options[:protocol] || config.default_asset_host_protocol || (request ? :request : :relative) @@ -251,7 +310,7 @@ module ActionView # javascript_path "http://www.example.com/js/xmlhr" # => http://www.example.com/js/xmlhr # javascript_path "http://www.example.com/js/xmlhr.js" # => http://www.example.com/js/xmlhr.js def javascript_path(source, options = {}) - path_to_asset(source, {type: :javascript}.merge!(options)) + path_to_asset(source, { type: :javascript }.merge!(options)) end alias_method :path_to_javascript, :javascript_path # aliased to avoid conflicts with a javascript_path named route @@ -263,7 +322,7 @@ module ActionView # javascript_url "js/xmlhr.js", host: "http://stage.example.com" # => http://stage.example.com/assets/dir/xmlhr.js # def javascript_url(source, options = {}) - url_to_asset(source, {type: :javascript}.merge!(options)) + url_to_asset(source, { type: :javascript }.merge!(options)) end alias_method :url_to_javascript, :javascript_url # aliased to avoid conflicts with a javascript_url named route @@ -278,7 +337,7 @@ module ActionView # stylesheet_path "http://www.example.com/css/style" # => http://www.example.com/css/style # stylesheet_path "http://www.example.com/css/style.css" # => http://www.example.com/css/style.css def stylesheet_path(source, options = {}) - path_to_asset(source, {type: :stylesheet}.merge!(options)) + path_to_asset(source, { type: :stylesheet }.merge!(options)) end alias_method :path_to_stylesheet, :stylesheet_path # aliased to avoid conflicts with a stylesheet_path named route @@ -290,7 +349,7 @@ module ActionView # stylesheet_url "css/style.css", host: "http://stage.example.com" # => http://stage.example.com/css/style.css # def stylesheet_url(source, options = {}) - url_to_asset(source, {type: :stylesheet}.merge!(options)) + url_to_asset(source, { type: :stylesheet }.merge!(options)) end alias_method :url_to_stylesheet, :stylesheet_url # aliased to avoid conflicts with a stylesheet_url named route @@ -308,7 +367,7 @@ module ActionView # The alias +path_to_image+ is provided to avoid that. Rails uses the alias internally, and # plugin authors are encouraged to do so. def image_path(source, options = {}) - path_to_asset(source, {type: :image}.merge!(options)) + path_to_asset(source, { type: :image }.merge!(options)) end alias_method :path_to_image, :image_path # aliased to avoid conflicts with an image_path named route @@ -320,7 +379,7 @@ module ActionView # image_url "edit.png", host: "http://stage.example.com" # => http://stage.example.com/edit.png # def image_url(source, options = {}) - url_to_asset(source, {type: :image}.merge!(options)) + url_to_asset(source, { type: :image }.merge!(options)) end alias_method :url_to_image, :image_url # aliased to avoid conflicts with an image_url named route @@ -334,7 +393,7 @@ module ActionView # video_path("/trailers/hd.avi") # => /trailers/hd.avi # video_path("http://www.example.com/vid/hd.avi") # => http://www.example.com/vid/hd.avi def video_path(source, options = {}) - path_to_asset(source, {type: :video}.merge!(options)) + path_to_asset(source, { type: :video }.merge!(options)) end alias_method :path_to_video, :video_path # aliased to avoid conflicts with a video_path named route @@ -346,7 +405,7 @@ module ActionView # video_url "hd.avi", host: "http://stage.example.com" # => http://stage.example.com/hd.avi # def video_url(source, options = {}) - url_to_asset(source, {type: :video}.merge!(options)) + url_to_asset(source, { type: :video }.merge!(options)) end alias_method :url_to_video, :video_url # aliased to avoid conflicts with an video_url named route @@ -360,7 +419,7 @@ module ActionView # audio_path("/sounds/horse.wav") # => /sounds/horse.wav # audio_path("http://www.example.com/sounds/horse.wav") # => http://www.example.com/sounds/horse.wav def audio_path(source, options = {}) - path_to_asset(source, {type: :audio}.merge!(options)) + path_to_asset(source, { type: :audio }.merge!(options)) end alias_method :path_to_audio, :audio_path # aliased to avoid conflicts with an audio_path named route @@ -372,7 +431,7 @@ module ActionView # audio_url "horse.wav", host: "http://stage.example.com" # => http://stage.example.com/horse.wav # def audio_url(source, options = {}) - url_to_asset(source, {type: :audio}.merge!(options)) + url_to_asset(source, { type: :audio }.merge!(options)) end alias_method :url_to_audio, :audio_url # aliased to avoid conflicts with an audio_url named route @@ -385,7 +444,7 @@ module ActionView # font_path("/dir/font.ttf") # => /dir/font.ttf # font_path("http://www.example.com/dir/font.ttf") # => http://www.example.com/dir/font.ttf def font_path(source, options = {}) - path_to_asset(source, {type: :font}.merge!(options)) + path_to_asset(source, { type: :font }.merge!(options)) end alias_method :path_to_font, :font_path # aliased to avoid conflicts with an font_path named route @@ -397,7 +456,7 @@ module ActionView # font_url "font.ttf", host: "http://stage.example.com" # => http://stage.example.com/font.ttf # def font_url(source, options = {}) - url_to_asset(source, {type: :font}.merge!(options)) + url_to_asset(source, { type: :font }.merge!(options)) end alias_method :url_to_font, :font_url # aliased to avoid conflicts with an font_url named route end |